Outstanding description! Bravo! You nailed it,
Him: Do you have a title?
You: I'm Chief of TRPPCD.
Him: TR what?
You: TRCCPD--thermal regulatory and psychological and physical comfort devices."
Him: Oh, okay.
You: I do consulting on the side. (meaning giving opinions here on QB and in casual conversation w/ quilters)
Him: (nods with raised eyebrows, still clueless, but slightly humbled)
You: What do YOU do?